While the latest 12.27.2012 release of the Complete Map Pack does not include any new maps, it does fix an issue where the installer would not work correctly if the language in Windows was not set to English.

The Complete Map Pack is a collection of all the fan-made Multiplayer custom maps for TRON 2.0.

Version 1.2a of the TRON 2.0 Self-Installing Editing Tools again fixes the same issue with its installer, where it would not work correctly if the language in Windows was not set to English.

Another fix is the installer no longer aborting after choosing to skip extraction, if a previous existing extraction was done improperly. Also, now on uninstall, you are informed that WinREZ LT Studio and XN Resource Editor must be uninstalled separately.

Meanwhile, work on a fix for TRON 2.0 Multiplayer is underway. See the article about Gamespy dropping support for older games, to find out more about the situation. Also visit the LDSO Facebook page for discussion on the subject.

Well, that company has decided to drop support for a lot of older games that use Gamespy for multiplayer connectivity, some time in the week preceeding the date of this article. Hundreds of games are affected, and TRON 2.0 is one of them. Players of these older games are incensed as you might well imagine, bombarding the Facebook Gamespy page with lots of angry comments.

So, basically, you will no longer be able to find any servers for TRON 2.0 Multiplayer, from inside the game. We'll either have to wait it out and see if the new owners reverse their decision due to the uproar, or if we need to: come up with an alternative way to find servers.

Either way, TRON 2.0 Multiplayer is currently crippled. The LDSO servers that would normally be running on weekends, will remain offline for the time being because of the current situation.

The on-again, off-again TRON 3 (for lack of a better title) sequel to TRON Legacy is back "on" again. Apparently, its release is being fast-tracked, and last everyone heard (from Bruce Boxleitner, TRON himself) the film is supposed to be released in 2014.

"It's in the works," he explained. "Anything could happen, but all I can say is, it's in its formative stages. [Joseph] Kosinski, who is slated for it, he's shooting another movie now, and then they'll get around to doing that. I think somewhere around 2014, maybe. I'm talking way out of school here, but they can't shoot me because I'm TRON."

Hopefully, this news means that TRON Uprising has a chance of being renewed, after all? But please sign the TRON Uprising petition if you haven't already, as an extra measure to help ensure the show isn't cancelled.

Due to the poor scheduling and handling of TRON Uprising by Disney, and because there is a real danger of the show being cancelled, fans are banding together and signing a petition to urge Disney XD to reschedule the show back to a better time slot. (The show has recently been moved to 12:00 AM midnight ET on Sunday each week, technically Monday mornings.)

If enough people sign the petition, Disney may rethink their actions. So I'm doing what I can to help out, by mentioning it here on this site and on the various LDSO maintained sites. The petition will be mailed in to Disney by founder Bradley Clarke, once it reaches a high enough signature count.

For those that believe petitions don't do anything: all I can say is, that's not true. There have been plenty of examples where petitions have made a difference. A good example of that was the petition against the design of the characters in the new Loonatics Unleashed cartoon released by Warner Bros. a few years back. A petition can work, as long as it receives enough signatures and gets the right kind of attention.

Back on the 25th Anniversary of the release of the original TRON in theaters, I mailed in multiple copies of a petition I'd created, to various people within the Disney organization. The goal was to show them that there was still interest in a TRON film sequel or a new video game.

Later, I heard through the grapevine that it had a minor influence on getting the ball rolling on TRON Legacy. That Disney saw the dedication of the fans after all these years, and after weighing many factors, decided to at least do a test trailer which was shown at the 2008 Comicon.

So I encourage everyone to sign the TRON Uprising petition. If you don't sign, because you don't think it will work, then it becomes a self-fulfilling prophecy. Take the time out, to try and make a difference.

TRON Uprising is the best animated series I've watched in years. It's been almost universally praised by fans and the media. Executive Producer Charlie Bean, the team of animators, and everyone involved have done tremendous work on the series. To be honest, for me TRON Legacy was a bit of a let down. (You can read my thoughts about it, in a previous article.) But TRON Uprising far exceeded my expectations.

I think the real problem here, is that Disney has misjudged which market demographic they should be targeting the show at. Disney has kept repeating this same mistake with every attempt to revive or further the TRON "franchise", time and again. Right now, they are targeting young children who they hope will become future longtime fans. Which is why putting TRON Uprising on Disney XD made sense, to them.

Disney is ignoring the older fan base, by not putting the show on another Disney owned network with a broader demographic. If TRON Uprising was being aired on the Disney Channel or ABC, older fans would see the show and be gushing about it to all their friends. Getting them hooked on the show, as well. Word of mouth is far more valuable than any form of marketing.

When Disney hired 42 Entertainment to market TRON Legacy, this team knew exactly what they were doing. They targeted old-school fans of the original TRON, tapping into their nostalgia about the original film, when they opened a real-life Flynn's Arcade and created an actual Space Paranoids game. This marketing campaign was a great success. Not only were fans excited, but the press was buzzing as well.

TRON Uprising deserves better treatment, and I hope that a petition will help keep alive the best thing to happen to TRON in quite some time.

According to Charlie Bean, Executive Producer on TRON Uprising, the ratings are not doing well. The show will not be airing this week on the Disney XD channel, and will likely be rescheduled to another time slot.

Bad news for an animated series, that I think is far superior to the actual Tron Legacy movie sequel we got.

November 17th, 2012 UPDATE: Charlie Bean has updated fans on the status of TRON Uprising, and it's looking very bad. Disney has rescheduled the show to Sundays at midnight on Disney XD, starting on Dec. 2nd.

This time slot marks the death of Uprising, unfortunately. We'll get 8 more episodes, but then it will be cancelled. I can't see it being renewed for another season. Really hate having to report this kind of news. TRON Uprising was such a quality show, and deserves better!

News for fans of TRON Uprising. The show will return to XD at a new time: Sundays at Midnight (technically Mon morn) starting Dec. 2nd.

- Charlie Bean, Executive Producer of TRON Uprising

Some folks are saying Disney is moving Uprising to that 12 AM time slot to compete with Adult Swim on Cartoon Network, and that Disney has finally clued in that the number of older fans watching is more important than they originally thought.

Sadly, I can't see this as anything other than a death sentence. But I would be glad to be proven wrong.

January 11th, 2013 UPDATE: As I feared, TRON Uprising is being cancelled. Very disappointed with the way Disney has handled Uprising, and TRON in general, over the years.

Going to miss the best thing to happen to TRON in almost a decade.

There's another petition you can sign if you want to (link below, thanks to deeahchur for making me aware of it), and you can also try tweeting @TronLegacy and @DisneyChannelPR on Twitter to express your disappointment.

A: User Error is a Single Player expansion for the PC version of TRON 2.0 in the form of a mod, that was originally released seven years ago. It featured 5 levels created by Meatsack. Meatsack teamed up with LDSO to create 11 additional levels for the expansion, bringing the total to 16 (including cutscenes). The most recent version of User Error has released the original 5 and additional 11 levels as two separate parts, now known as User Error 1 and User Error 2.

The story of User Error is about a character named Jeremy Powers who works at fCon, shortly after their takeover of ENCOM. Jeremy is having financial troubles, and decides to use his position at fCon to do some espionage in order to make enough money to pay off his debts. A former Russian agent named Karl offers to reward him handsomely if he will risk entering the computer by being digitized, and retrieve the fragments of a top secret file. Gathering all the fragments proves much more difficult than Jeremy originally thought, as his continuing adventures in the new additional levels demonstrates.

A: Here are some of the more important changes you can expect in v1.1a of Parts 1 and 2.

CHANGED - Gold colored ICPs and the various color Kernels in User Error 2 now have energy shield armor and discs that match their own color, instead of shields and discs always being red.

CHANGED - There are now Gold Launcher type ICPs in addition to Regular ICPs.

CHANGED - User Error 1 and 2 are now compressed with a 7-Zip self-extractor. This resulted in a significant file size reduction compared to compressing as a .zip file. (Down to 62 MB.) Also, the self-extractor prevents people from trying to run the installers without extracting first (running inside the .zip), which would often result in error messages when attempting to install that way. The extractor will extract the installers to the desktop by default, where they're easy to find. But, the program also offers you the choice of where to extract it.

FIXED - An issue with the setup programs caused installation to fail on Windows 8, and sometimes even prior versions of Windows. This has been fixed.

FIXED - Other minor fixes.

Q: How do I use the Mod?

A: User Error 1 and 2 are self-installing now. All you have to do is run the self-extracting program you downloaded to extract the installers to your desktop, run each one, and follow the on-screen instructions. The installation process has been made as automated and painless as possible. REZ Handler is no longer necessary to install these. User Error should work on any version of Windows going back to 98, but was tested on XP/Vista/7/8 only.

It is recommended to install and play through User Error 1 first, then install User Error 2. As you install each part, it automatically becomes active the next time you run Tron 2.0. So after finishing Part 1, if you install Part 2 and start a new Single Player mission, you'll be playing Part 2 instead.

To confirm a part of User Error is installed and active, when you start a new Single Player game you'll get a new User Error mission. As a bonus, if you installed the Killer App Mod before User Error, you'll see a new animation on the Main Menu that will instantly let you know User Error is working.

Remember that while the mod is enabled, you cannot play Multiplayer online or load any older Single Player saved games. You must disable the mod again. You can disable the mod by clicking the "Custom" button in the TRON 2.0 game launcher and removing the X from the checkbox.

Q: Can I load my saved games from Part 1 in Part 2?

You cannot load any saved games from Part 1 when playing Part 2. But at the start of Part 2 you will be given everything you need (weapons, subroutines, etc.) so you don't have to start over from scratch.

If you have any other question or concerns about the updated User Error missions, please visit the LDSO message forums.

Also keep an eye out for another User Error Single Player mission and an updated Killer App Mod v1.2 in the future!

This video is long and a bit boring, but I wanted to show any problems I had in getting TRON 2.0 or TRON Evolution running in Windows 8. So I demonstrate where I hit roadblocks, and how to get around them.

I also wanted to prove the games actually were being installed and attempted to run on Windows 8. So they've been run in windowed mode, rather than full screen. Unfortunately, Camtasia Studio isn't so great for recording games. Any choppiness or stuttering is because of that.

Windows 8 isn't available at retail just yet, but I personally do not recommend upgrading to it at this time. The Enterprise Evaluation trial version I'm using is the same RTM code as what will be sold at retail. When it comes to playing games, stick with Windows 7 for now. If I change my mind on this, I'll update this article. Despite the recommendation, TRON 2.0 does run even smoother on Windows 8 than it does on Windows 7. Believe it or not.

It's best to watch the video in higher quality HD so you can see the details better.

Link to Games for Windows Live Client that works on Windows 8:http://sdrv.ms/O2WvBt
Right-click gfwlivesetup on that page, then click download.

NOTE: v1.2 of the Killer App Mod isn't available yet. I'm currently working on it, and hope to have it done by the end of 2012. The current version is v1.1.

The TRON 2.0 Complete Map Pack has been updated. It contains one new map, and there have been some other changes.

Changes in Derez (DM) Map Pack
YCP HQ (YCP_HQ) ADDED

YCP HQ (by deeahchur) is also available separately, on its own, so you don't have to download the entire Complete Map Pack just to get the new map. But if you read further, you'll see there have been other changes to the map pack that may make it worth it to you, to re-download the entire thing.

Use REZ Handler to install just the YCP HQ map, and then use the "Combine .REZ" feature to merge the YCP.REZ file with DM_Pack.REZ to reduce the .REZ file count.

Changes in All Map Packs
Some of the map authors saved their sound effect and music files in an incorrect format. This caused the sounds to not play for everyone, depending on their sound hardware configuration.

The sound files have been reformatted (without affecting quality), to fix the issue and allow music and sound effects to be heard by everyone. Therefore, if you install this updated version of the map pack - even if you already have these same maps from the previous release - you may now hear music and sounds in a map that the map authors intended you to hear, but have not heard before.

Changes to the Installer
The map pack is now compressed with a 7-Zip self-extractor. This was done for a couple of reasons.

It resulted in a significant file size reduction compared to compressing as a .zip file. (Down to 721 MB.)

The self-extractor prevents people from trying to run the installer without extracting first (running inside the .zip), which would often result in error messages when attempting to install that way. The extractor will extract the map pack to the desktop by default, where it's easy to find. But, the program also offers you the choice of where to extract it.

After the map pack has been extracted, you click on the icon to run the installer. The maps will then finally be installed. If you chose to extract to the desktop but don't see the icon, hit the F5 key on the keyboard to refresh the desktop or click the right mouse button on the desktop and choose Refresh if it's available.

The installer also now checks during installation, if a newer version of the map pack is available. If so, it will inform you and direct you to a download link for the updated version.

With the help of new LDSO member Kain-Xavier, both Zook_One and myself (TronFAQ) have been able to recreate the weapons from the Xbox version of TRON 2.0: Killer App in the PC version of the game. Big thanks go out to Kain-Xavier for making this possible! It's something that originally was not going to be attempted until v1.3 of the Killer App Mod, which would have been long down the road.

The Disc Absorber is still not 100% working correctly in Multiplayer Derez, but the remaining three weapons appear to be working perfectly.

And we've been able to do something in the Mod that you can't do in the Xbox version (that I'm aware of): use the new weapons in the Single Player portion of the game! However, the additional weapons will be restricted to users of the Gold cheat, only. Traditional playthrough without using the cheat means no added weapons, to keep the experience as it's always been.

NOTE: I'm not happy yet with the icon on one of the updated powerups, so it's still going to be worked on.

It's best to watch the trailer in higher quality HD so you can see the details better.

We don't have an exact ETA for the v1.2 update. But we're looking to have it done before the end of 2012.

Thanks from the Killer App Mod team, and if you have any questions or comments: visit the LDSO message forum or leave a comment here.

The second is a new KMX Legacy Disc Mod. If you've ever used Xistence's Ancient Disc Mod for TRON 2.0, then you know exactly what to expect. It changes your discs to look like the ones from the TRON Legacy sequel.

It was 30 years ago on July 9th, 1982 that the original TRON film was released in theaters. And today, we have the new TRON Uprising series on Disney XD to look forward to every week.

I have to say that Uprising is far, far better than Legacy was when it comes to story and providing varied locales. (Instead of being stuck in indoor sets for 90% of the film!) In a way, it's kind of a sad statement when a "cartoon" is so much better than the actual movie sequel you waited almost 30 years for. But, at least I'm really enjoying what Disney has to offer now!

Our team has been keeping busy for the last three months: working on the next chapter in the series of User Error Single Player expansions, and also working on v1.2 of the Killer App Mod, for TRON 2.0 on the PC. Today, we have some more video clips demonstrating features in both projects.

User Error 3 is currently at a pre-alpha stage, and the preview clips are tests that are not 100% final. As the project nears completion, you can likely expect changes from what you're seeing here today.

Here is a short clip of a test cutscene in UE3, that will probably end up as the introduction to the mission. The scene is quite long, but we're only showing you a small part of it now so as not to spoil the story too much.

Here's another test cutscene, from what might be a later stage in the mission.

This is a clip demonstrating a new feature that will be part of the mission. User Powers.

Your character will have certain powers like Flynn did, in the original TRON film. The power shown lets you steal other programs' faction colors and disguise yourself as one of them. This way, you can move around freely unless you attack an enemy, at which point the disguise will wear off. There will be a few other powers, as well.

Here's a demonstration showing how in v1.2 of the Killer App Mod, the Light Cycle colors in the Single Player part of the game will be unlocked all at once. TRON 2.0 has a limitation on the number of colors that can be unlocked at once. This meant using the Mod Manager application to swap back and forth between the original colors, and the new colors added by the mod.

In v1.2, this limitation has been overcome and now all the colors will be unlocked at once without the need to swap. This also helps eliminate the "Player.txt file not found" error (or similar) you would get in the Mod Manager, if you change your Profile name after installing the mod.

This issue never affected Multiplayer. All the Light Cycle colors were always available there.

As before, we don't have an estimate on the total number of levels for UE3, or a specific ETA, at this time. But we're looking to create a fairly lengthy campaign (close to the same length as User Error 2), and hoping to have the project done before the end of 2013.

For v1.2 of the Killer App Mod, we're hoping to have it done and released by the end of 2012.

Thanks from the User Error and Killer App Mod teams, and if you have any questions or comments: visit the LDSO message forum or leave a comment here.

Today the teams that brought you User Error and the Killer App Mod for TRON 2.0 on the PC, are going to show you what you can expect from us in the future.

User Error 3

This is an early, rough test version of a cutscene, for a level in the upcoming User Error 3. The User Error team had always planned to do another mission as a sequel, and we now feel the time is right to work on this next chapter.

We don't have an estimate on the total number of levels, or an ETA, at this time. But we're looking to create a fairly lengthy campaign (close to the same length as Part 2), and we'll be trying to increase the overall quality and polish of our work. It's been four years since the original release of User Error Part 2, and in that time we've learned a lot of new tricks that we think will show in Part 3.

Killer App Mod v1.2

Although not many people have left feedback on our LDSO web site, the TRON fan sites, here, or on ModDB: we've kept an eye out on the internet as a whole, reading your comments and discussions whenever our projects have been brought up.

We've heard some of your annoyances with v1.1 of the Killer App Mod. About installation difficulties, not knowing which order to install all the various add-ons available, about widescreen not always working as it should. Remember, though, that v1.1 was released as an Open Beta. Because we knew there were inevitably going to be issues that we overlooked. That's why we needed that feedback, and feedback sent directly to us would have been more helpful.

That being said: a lot of the issues that have cropped up, will be put to rest in v1.2 of the mod. Installation will be a lot easier and work better, you'll be informed of add-ons and what order to install them, widescreen will work better, and you'll even automatically be notified of any further updates when you first install the mod or run the Mod Manager.

Here's a video previewing a couple of the improvements in widescreen implementation.

The System Memory screen, where you work with subroutines, now has correctly working hit-detection in widescreen. Before, the cursor placement would often have to be off to the side in order to highlight something. Rather than being directly on top. Not any more, though, as the video demonstrates.

And now if you enter the Display options menu of the game, the resolution no longer resets to the default 640x480. You can pick your resolution, directly from within the game itself. This will prevent you from losing widescreen by accident, and then needing to run the Mod Manager to get it back.

Again, we don't have an exact ETA for the v1.2 update. But we're looking to have it done before the end of 2012.

Thanks from the User Error and Killer App Mod teams, and if you have any questions or comments: visit the LDSO message forum, or leave a comment here.

October 31st, 2012 UPDATE: This article is out of date. An updated User Error v1.1a is now available.

Q: What is User Error?

A: User Error is a Single Player expansion for the PC version of TRON 2.0 in the form of a mod, that was originally released seven years ago. It featured 5 levels created by Meatsack. Meatsack teamed up with LDSO to create 11 additional levels for the expansion, bringing the total to 16 (including cutscenes). The most recent version of User Error has released the original 5 and additional 11 levels as two separate parts, now known as User Error 1 and User Error 2.

The story of User Error is about a character named Jeremy Powers who works at fCon, shortly after their takeover of ENCOM. Jeremy is having financial troubles, and decides to use his position at fCon to do some espionage in order to make enough money to pay off his debts. A former Russian agent named Karl offers to reward him handsomely if he will risk entering the computer by being digitized, and retrieve the fragments of a top secret file. Gathering all the fragments proves much more difficult than Jeremy originally thought, as his continuing adventures in the new additional levels demonstrates.

A: Although the previous version with combined parts was released as "RC2", it is now considered v1.0.

Here are some of the more important changes you can expect in v1.1 of Parts 1 and 2.

CHANGED - User Error now self-installs. No more need for REZ Handler.

CHANGED - The installer will check online to see if a newer version of User Error is available. This way, people who end up downloading this version will find out if a newer one becomes available at a later date.

CHANGED - Supports widescreen fully now, when used together with the Killer App Mod.

CHANGED - You'll see a new animation on the Main Menu when User Error is active, as a bonus if Killer App is installed.

CHANGED - If you have Killer App installed: Jeremy's Rod weapons become purple to match his color scheme, as a bonus feature.

CHANGED - Added some text to a couple of the level loading screens, to explain the story a little better if you haven't read the readme.

CHANGED - The character's User name in the top left corner is Jeremy now. Not Jet.

FIXED - Jeremy sometimes sinking through the floor and "skating" across on the first level no longer occurs.

FIXED - Instead of being awarded 20 build points twice in a row after talking to the Unzipper.exe program on the Vertigo level, you are now awarded all 40 build points at once.

FIXED - Fixed the currently selected weapon disappearing after using an I/O Node on some levels. The weapon now stays selected.

FIXED - Some enemy characters were missing death (derez) effects, like the Gridbugs. This is no longer the case.

FIXED - Fixed a bug where you could keep activating the switch to the Satellite downlink over and over, on the Spacejunk level.

FIXED - Fixed bugs where you could ride the Recognizer without first turning on the energy beam and lowering the force field, on the User Power level.

FIXED - Fixed the pronunciation of the word "Recognizers" by the I-No-alike character.

FIXED - You're now unable to kill certain characters on the last level when behind the final force field.

FIXED - Fixed a sound effect not playing for everyone.

Q: How do I use the Mod?

A: User Error 1 and 2 are self-installing now. All you have to do is open the .ZIP file and copy the setup programs to your desktop, run each one, and follow the on-screen instructions. The installation process has been made as automated and painless as possible. REZ Handler is no longer necessary to install these. User Error should work on any version of Windows going back to 98, but was tested on XP/Vista/7 only.

It is recommended to install and play through User Error 1 first, then install User Error 2. As you install each part, it automatically becomes active the next time you run Tron 2.0. So after finishing Part 1, if you install Part 2 and start a new Single Player mission, you'll be playing Part 2 instead.

To confirm a part of User Error is installed and active, when you start a new Single Player game you'll get a new User Error mission. As a bonus, if you installed the Killer App Mod before User Error, you'll see a new animation on the Main Menu that will instantly let you know User Error is working.

Remember that while the mod is enabled, you cannot play Multiplayer online or load any older Single Player saved games. You must disable the mod again. You can disable the mod by clicking the "Custom" button in the TRON 2.0 game launcher and removing the X from the checkbox.

Q: Can I load my saved games from Part 1 in Part 2?

You cannot load any saved games from Part 1 when playing Part 2. But at the start of Part 2 you will be given everything you need (weapons, subroutines, etc.) so you don't have to start over from scratch.

If you have any other question or concerns about the updated User Error missions, please visit the LDSO message forums.

Also keep an eye out for another new follow-up Single Player mission and an updated Killer App Mod v1.2 in the future!

The LDSO site has just recently undergone some major updates. The old TRON 2.0 Chat Room has been resurrected. A new download section has been added. The forum software has been upgraded to the latest version. The site's front page has been revised to include, among other things, a new status display showing when the LDSO TRON 2.0: Killer App Mod multiplayer servers are online. (This status display can also now be seen at the top of every page on this site.)

And, finally, a new TRON 2.0 Wiki has been created. The TRON 2.0 Unofficial FAQ will be merged into this wiki over time, and in the process it will be revised: to bring it up to date. Some of the information in the FAQ is outdated.

The wiki is also meant to serve as a resource for mapping and modding tips and tutorials, for those who would still like to attempt creating content for the TRON 2.0 game. If you become a member at the LDSO message forum, you will automatically become a member of the wiki as well. Then, if you choose to, you can participate in contributing to wiki articles.

Simply visit the LDSO site, and check the left-hand side of the front page for links to these new additions. Hope to see you there!

Despite the lack of updates, I just wanted to let everyone know that this site is not dead.

Other projects I'm doing (that I feel are more important) are leaving me with almost no time to spare. However, these endeavors are still related to TRON 2.0. Most notably: an updated version of User Error that self-installs and adds widescreen support, and an updated Killer App Mod, are in the pipeline. With the updated UE due shortly. (Yes, really this time.) Some of the other projects I've been working on, will be mentioned in another article that I'm posting today. If you want to see a full list of some of the things I've been up to, you can visit this page.

So, for now, this site is going on somewhat of a hiatus, and again focusing mainly on its original purpose: to act as a support resource for the PC and Mac versions of the game TRON 2.0. However, I will still continue to post articles about other more general TRON related news. Though on a less frequent basis. (I'm sure once the upcoming TRON Uprising animated series hits, I'll have plenty to say about it.)

As I said last time, in a similar article: Thank you again for visiting. I hope to provide TRON, TRON 2.0, and TRON Legacy fandom with continued useful information you may not find anywhere else.

TRON 2.0: Killer App Mod v1.1a- Download this "killer app" that adds many new features to, and fixes problems with, the PC version of the TRON 2.0 game! Adds 16:9 and 16:10 widescreen support, and Français/Deutsch/Italiano/Español language support to the previously English only Unofficial v1.042 Patch. Also fixes broken Multiplayer on both the CD/DVD and Steam versions of TRON 2.0.

TRON 2.0 Mac OSX 10.4 Patch- Download this new installer to help fix the problem where the game won't install on OSX 10.4 (Tiger), or won't accept your serial number (CD key). Go HERE for a workaround that allows the game to run on OSX 10.5 (Leopard) or later.